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1
11 package org.eclipse.compare.internal;
12
13 import java.io.*;
14 import java.util.ResourceBundle  ;
15 import com.ibm.icu.text.MessageFormat;
16
17 import org.eclipse.swt.SWT;
18 import org.eclipse.swt.custom.BusyIndicator;
19 import org.eclipse.swt.events.SelectionEvent;
20 import org.eclipse.swt.events.SelectionListener;
21 import org.eclipse.swt.layout.RowLayout;
22 import org.eclipse.swt.widgets.*;
23 import org.eclipse.ui.PlatformUI;
24 import org.eclipse.core.runtime.CoreException;
25 import org.eclipse.compare.*;
26 import org.eclipse.compare.structuremergeviewer.ICompareInput;
27
28
32 public class BinaryCompareViewer extends AbstractViewer {
33
34 private static final String BUNDLE_NAME= "org.eclipse.compare.internal.BinaryCompareViewerResources";
36 private static final int EOF= -1;
37 private ICompareInput fInput;
38 private ResourceBundle fBundle;
39 private boolean fLeftIsLocal;
40
41 private Composite fComposite;
42 private Label fMessage;
43 private Button fTextButton;
44
45
46 public BinaryCompareViewer(Composite parent, final CompareConfiguration cc) {
47
48 PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, ICompareContextIds.BINARY_COMPARE_VIEW);
49
50 fBundle= ResourceBundle.getBundle(BUNDLE_NAME);
51
52 fComposite= new Composite(parent, SWT.NONE);
53 RowLayout rowLayout = new RowLayout();
54 rowLayout.type = SWT.VERTICAL;
55 fComposite.setLayout(rowLayout);
56
57 fMessage= new Label(fComposite, SWT.WRAP);
58 fMessage.setData(CompareUI.COMPARE_VIEWER_TITLE, Utilities.getString(fBundle, "title"));
60 fLeftIsLocal= Utilities.getBoolean(cc, "LEFT_IS_LOCAL", false);
62 if (canShowAsText(cc)) {
63 fTextButton = new Button(fComposite, SWT.PUSH);
64 fTextButton.setText(Utilities.getString(fBundle, "compareAsText")); fTextButton.addSelectionListener(new SelectionListener() {
66 public void widgetSelected(SelectionEvent e) {
67 BusyIndicator.showWhile(Display.getCurrent(), new Runnable () {
68 public void run() {
69 handleShowAsText(cc);
70 }
71 });
72 }
73 public void widgetDefaultSelected(SelectionEvent e) {
74 }
76 });
77 fTextButton.setEnabled(false);
78 }
79 }
80
81 private boolean canShowAsText(CompareConfiguration cc) {
82 if (cc == null)
83 return false;
84 return Utilities.getAdapter(cc.getContainer(), ICompareAsText.class) != null;
85 }
86
87 protected void handleShowAsText(CompareConfiguration cc) {
88 ICompareAsText comparer = (ICompareAsText)Utilities.getAdapter(cc.getContainer(), ICompareAsText.class);
89 comparer.compareAsText(getInput());
90 }
91
92 public Control getControl() {
93 return fComposite;
94 }
95
96 public void setInput(Object input) {
97 if (fComposite != null && input instanceof ICompareInput) {
98 fInput= (ICompareInput) input;
99
100 InputStream left= null;
101 InputStream right= null;
102
103 String message= null;
104 try {
105 left= getStream(fInput.getLeft());
106 right= getStream(fInput.getRight());
107
108 if (left != null && right != null) {
109 int pos= 0;
110 while (true) {
111 int l= left.read();
112 int r= right.read();
113 if (l != r) {
114 String format= Utilities.getString(fBundle, "diffMessageFormat"); message= MessageFormat.format(format, new String [] { Integer.toString(pos) } );
116 break;
117 }
118 if (l == EOF)
119 break;
120 pos++;
121 }
122 } else if (left == null && right == null) {
123 message= Utilities.getString(fBundle, "deleteConflictMessage"); } else if (left == null) {
125 if (fLeftIsLocal)
126 message= Utilities.getString(fBundle, "deletedMessage"); else
128 message= Utilities.getString(fBundle, "addedMessage"); } else if (right == null) {
130 if (fLeftIsLocal)
131 message= Utilities.getString(fBundle, "addedMessage"); else
133 message= Utilities.getString(fBundle, "deletedMessage"); }
135 } catch (CoreException ex) {
136 message= Utilities.getString(fBundle, "errorMessage"); } catch (IOException ex) {
138 message= Utilities.getString(fBundle, "errorMessage"); } finally {
140 Utilities.close(left);
141 Utilities.close(right);
142 }
143 if (message != null)
144 fMessage.setText(message);
145 if (fTextButton != null)
146 fTextButton.setEnabled(true);
147 fComposite.layout();
148 }
149 }
150
151 public Object getInput() {
152 return fInput;
153 }
154
155 private InputStream getStream(ITypedElement input) throws CoreException {
156 if (input instanceof IStreamContentAccessor)
157 return ((IStreamContentAccessor)input).getContents();
158 return null;
159 }
160 }
161 |
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